Implement Jade CLI v1.0 MVP

Complete implementation of note management CLI with all core features:

Commands:
- add: Create new notes in $EDITOR with auto-generated filenames
- list: Display all notes with titles, paths, and tags
- search: Full-text search via ripgrep, tag-based filtering
- tags: List all tags with occurrence counts
- edit: Fuzzy search and edit notes by title
- rm: Move notes to trash with confirmation prompt

Features:
- Automatic depository structure initialization (.jade/trash/)
- Configurable tag prefix (default '+')
- Parse title from first # heading (filename fallback)
- Extract tags anywhere in content
- Parse both [[wiki-links]] and [markdown](links)
- Trash system with timestamps to prevent conflicts

Technical:
- Global config at ~/.config/jade/config.yml
- Per-depository settings support
- Ripgrep integration for fast search
- $EDITOR integration for note editing
- Comprehensive README with usage examples

jade-depo/cmd/add.go

@@ -2,14 +2,20 @@ package cmd
 
 import (
 	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
 
+	"git.jnss.me/joakim/jadedepo/internal/engine"
 	"github.com/spf13/cobra"
 )
 
 var (
 	addCmd = &cobra.Command{
 		Short: "Add note to depository",
-		Use:   "add [note]",
+		Use:   "add [title]",
+		Args:  cobra.MinimumNArgs(1),
 		Run:   addNote,
 	}
 )
@@ -19,7 +25,47 @@ func init() {
 }
 
 func addNote(cmd *cobra.Command, args []string) {
-	// open new note in $EDITOR
+	jd, err := engine.GetInstance()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
+	}
 
-	fmt.Println(args)
+	// Join all args as the title
+	title := strings.Join(args, " ")
+
+	// Convert title to filename
+	filename := engine.TitleToFilename(title)
+	notePath := filepath.Join(jd.Config.DepoPath, filename)
+
+	// Check if file already exists
+	if _, err := os.Stat(notePath); err == nil {
+		fmt.Fprintf(os.Stderr, "Error: note '%s' already exists\n", filename)
+		os.Exit(1)
+	}
+
+	// Create file with initial heading
+	initialContent := fmt.Sprintf("# %s\n\n", title)
+	if err := os.WriteFile(notePath, []byte(initialContent), 0644); err != nil {
+		fmt.Fprintf(os.Stderr, "Error creating note: %v\n", err)
+		os.Exit(1)
+	}
+
+	// Open in $EDITOR
+	editor := os.Getenv("EDITOR")
+	if editor == "" {
+		editor = "vi" // fallback
+	}
+
+	editorCmd := exec.Command(editor, notePath)
+	editorCmd.Stdin = os.Stdin
+	editorCmd.Stdout = os.Stdout
+	editorCmd.Stderr = os.Stderr
+
+	if err := editorCmd.Run(); err != nil {
+		fmt.Fprintf(os.Stderr, "Error opening editor: %v\n", err)
+		os.Exit(1)
+	}
+
+	fmt.Printf("Created note: %s\n", filename)
 }